Outer
Outer adjective - Situated on the outside or farther out.
Unreachable and outer are semantically related. In some cases you can use "Unreachable" instead an adjective "Outer".
Unreachable
Unreachable adjective - Hard or impossible to get to or get at.
Outer and unreachable are semantically related. Sometimes you can use "Outer" instead an adjective "Unreachable".
Mutual synonyms
Both words in one sentence
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When you visit the mansion, it's possible to encounter a doorway opening on what appears to be outer space, with distant and apparently unreachable fragments of mansion hovering in the starry void.
Cite this Source
Unreachable and Outer. (2016). Retrieved 2026, August 01, from https://thesaurus.plus/related/outer/unreachable
Outer & Unreachable. N.p., 2016. Web. 01 Aug. 2026. <https://thesaurus.plus/related/outer/unreachable>.
Unreachable or Outer. 2016. Accessed August 01, 2026. https://thesaurus.plus/related/outer/unreachable.
Google Ngram Viewer shows how "outer" and "unreachable" have occurred on timeline